From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EE48C433E1 for ; Fri, 24 Jul 2020 12:42:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED2582074F for ; Fri, 24 Jul 2020 12:42:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=citrix.com header.i=@citrix.com header.b="BZqXe6it" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726895AbgGXMmu (ORCPT ); Fri, 24 Jul 2020 08:42:50 -0400 Received: from esa3.hc3370-68.iphmx.com ([216.71.145.155]:20842 "EHLO esa3.hc3370-68.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726329AbgGXMmu (ORCPT ); Fri, 24 Jul 2020 08:42:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1595594570; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=lKXqW8/3YOwTJyFQghmaI+GKNMTKpRONfG96XJL/WMA=; b=BZqXe6itPshhw5SvxqtgahrVQsUNc1iTrY5Xcuplaj7eMxM7TAc4ZpuE MpL6BOJ6TLOJ2tZC6qEGeLof34rnVGeGiXyFcpY/Wq5lwahTIC1LHLTLG sCDHLNZYTUj77Rupkcg14VRXD3zXxSb+gr+zPbQkv+B/+OCUmBtpX7qDa U=; Authentication-Results: esa3.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none IronPort-SDR: K2iI69Y6OCtQDD19Hf1T4acInpaZV4ysI4avOab6HMISqvB1o3gpzLiKS0FhxgkjERb9XUjbTM F5Fk3T9f8PoaJiidx88PglziYhudJ7iwbIzk0laWncsGIwz8mbbcVgIIfzCz86by8Hxvqzx5BR qbK8blo8XCtPs2i+LqVGnWdLRWcLB7az7C3KN4ylPsbPouPFyCxfn6homOcHD6A5C8ZGVk1Wyy ZBFJQbjsCo8HjxyTMtMXjYDlwSF1IkT6vaIvqsJ6hPCQ6AHZnn0CgbbMk0UmWe/uB4BCMSNSr1 L3s= X-SBRS: 2.7 X-MesageID: 23118831 X-Ironport-Server: esa3.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.75,390,1589256000"; d="scan'208";a="23118831" From: Roger Pau Monne To: CC: Roger Pau Monne , Subject: [PATCH v2 0/4] xen/balloon: fixes for memory hotplug Date: Fri, 24 Jul 2020 14:42:37 +0200 Message-ID: <20200724124241.48208-1-roger.pau@citrix.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, The following series contain some fixes in order to split Xen unpopulated memory handling from the ballooning driver if ZONE_DEVICE is available, so that physical memory regions used to map foreign pages are not tied to memory hotplug. Fix two patches are bugfixes that IMO should be backported to stable branches, third patch is a revert of a workaround applied to the balloon driver and last patch introduces an interface based on ZONE_DEVICE in order to manage regions to use for foreign mappings. Thanks, Roger. Roger Pau Monne (4): xen/balloon: fix accounting in alloc_xenballooned_pages error path xen/balloon: make the balloon wait interruptible Revert "xen/balloon: Fix crash when ballooning on x86 32 bit PAE" xen: add helpers to allocate unpopulated memory drivers/gpu/drm/xen/xen_drm_front_gem.c | 8 +- drivers/xen/Makefile | 1 + drivers/xen/balloon.c | 30 ++-- drivers/xen/grant-table.c | 4 +- drivers/xen/privcmd.c | 4 +- drivers/xen/unpopulated-alloc.c | 222 ++++++++++++++++++++++++ drivers/xen/xenbus/xenbus_client.c | 6 +- drivers/xen/xlate_mmu.c | 4 +- include/xen/xen.h | 8 + 9 files changed, 256 insertions(+), 31 deletions(-) create mode 100644 drivers/xen/unpopulated-alloc.c -- 2.27.0